How to use the pyresample.utils.parse_area_file function in pyresample

def unpatch_utils():
    """Unpatching the utils module.
    """
    utils.parse_area_file = utils.old_parse_area_file
    delattr(utils, "old_parse_area_file")
    utils.generate_quick_linesample_arrays = \
          utils.old_generate_quick_linesample_arrays
    delattr(utils, "old_generate_quick_linesample_arrays")

def test_easeplot(self):
        area_def = pr.utils.parse_area_file(os.path.join(os.path.dirname(__file__), 
                                            'test_files', 'areas.cfg'), 'ease_sh')[0]

        swath_def = pr.geometry.SwathDefinition(self.lons, self.lats)
        result = pr.kd_tree.resample_nearest(swath_def, self.tb37v, area_def, 
                                             radius_of_influence=20000, 
                                             fill_value=None)		
        plt = pr.plot._get_quicklook(area_def, result)

def test_area_parser(self):
        ease_nh, ease_sh = utils.parse_area_file(os.path.join(os.path.dirname(__file__), 
                                                              'test_files', 
                                                              'areas.cfg'), 'ease_nh', 'ease_sh')
        
        nh_found = (ease_nh.__str__() =="""Area ID: ease_nh
Name: Arctic EASE grid
Projection ID: ease_nh
Projection: {'a': '6371228.0', 'lat_0': '90', 'lon_0': '0', 'proj': 'laea', 'units': 'm'}
Number of columns: 425
Number of rows: 425
Area extent: (-5326849.0625, -5326849.0625, 5326849.0625, 5326849.0625)""")
        
        sh_found = (ease_sh.__str__() =="""Area ID: ease_sh
Name: Antarctic EASE grid
Projection ID: ease_sh
Projection: {'a': '6371228.0', 'lat_0': '-90', 'lon_0': '0', 'proj': 'laea', 'units': 'm'}
Number of columns: 425

def test_plate_carreeplot(self):
        area_def = pr.utils.parse_area_file(os.path.join(os.path.dirname(__file__), 
                                            'test_files', 'areas.cfg'), 'pc_world')[0]
        swath_def = pr.geometry.SwathDefinition(self.lons, self.lats)
        result = pr.kd_tree.resample_nearest(swath_def, self.tb37v, area_def, 
                                             radius_of_influence=20000, 
                                             fill_value=None)		
        plt = pr.plot._get_quicklook(area_def, result, num_meridians=0, 
                                     num_parallels=0)
    def test_easeplot(self):

"""Fake function.
        """
        del filename
        if area == "raise" or not isinstance(area, str):
            raise utils.AreaNotFound("This area is not to be found")
        else:
            return [geometry.AreaDefinition(area)]
        
    def fake_gqla(*args):
        """Fake function.
        """
        del args
        return (np.random.standard_normal((3, 1)),
                np.random.standard_normal((3, 1)))

    utils.old_parse_area_file = utils.parse_area_file
    utils.parse_area_file = fake_parse_area_file
    utils.old_generate_quick_linesample_arrays = \
                       utils.generate_quick_linesample_arrays
    utils.generate_quick_linesample_arrays = \
                       fake_gqla

def get_area_def(area_name):
    """Get the definition of *area_name* from file. The file is defined to use
    is to be placed in the $PPP_CONFIG_DIR directory, and its name is defined
    in mpop's configuration file.
    """
    return utils.parse_area_file(get_area_file(), area_name)[0]

def get_area_def(area_name):
    """Get the definition of *area_name* from file.

    The file is defined to use is to be placed in the $PPP_CONFIG_DIR
    directory, and its name is defined in satpy's configuration file.
    """
    from pyresample.utils import parse_area_file
    return parse_area_file(get_area_file(), area_name)[0]